Japan National Route 37

National Route 37
国道37号
Japan National Route 37 highlighted in red
Route information
Length	81.1 km[1] (50.4 mi)
Existed	4 December 1952–present
Major junctions
West end	National Route 5 / National Route 230 in Oshamambe
Major intersections	Dō-Ō Expressway National Route 230 National Route 453
East end	National Route 36 in Muroran
Location
Country	Japan
Highway system
National highways of Japan Expressways of Japan
← National Route 36 → National Route 38

National Route 37 (国道37号, Kokudō Sanjūnana-gō) is a Japanese national highway connecting Oshamambe and Muroran in southwestern Hokkaido. The 81.1-kilometer-long (50.4 mi) highway begins at an intersection with national routes 5 and 230 in the town of Oshamambe. It travels along the northern side of Uchiura Bay, paralleling the Dō-Ō Expressway. At the eastern edge of the bay it enters the city of Muroran where it ends at an intersection with National Route 36.